package com.wxit.gulimall.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 * @author wj
 * @date 2022.04.01 19:00
 */
@Configuration
public class GuliFeignConfig {

    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor(){
       return new RequestInterceptor() {
           @Override
           public void apply(RequestTemplate template) {
               //RequestContextHolder  拿到刚进来的这个请求
               ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
               if (attributes != null){
                   System.out.println("requestInterceptor线程-----" + Thread.currentThread().getId());
                   HttpServletRequest request = attributes.getRequest(); //老请求
                   if (request != null){
                       //同步请求数据头
                       String cookie = request.getHeader("Cookie");
                       //给新请求同步老请求的cookie
                       template.header("Cookie",cookie);
                   }
               }

           }
       };
    }
}
